FSL146MRBN Description

The FSL146MRBN is an integrated PWM (pulse-width modulation) controller with a built-in power MOSFET, designed primarily for switch-mode power supplies (SMPS) and adapter applications. This controller provides highly efficient power management with protections and features to improve power conversion efficiency and reliability. With its integrated MOSFET and control circuitry, the FSL146MRBN simplifies design and reduces the number of external components required in a power supply system.

FSL146MRBN Features

Integrated Power MOSFET: Reduces the need for external MOSFETs, allowing for compact designs.

Pulse Width Modulation (PWM) Control: Provides stable and efficient power management.

Built-In Protection Mechanisms: Includes protections such as overvoltage, overcurrent, overtemperature, and overload protection to enhance reliability.

Burst-Mode Operation: Reduces power consumption at light loads, meeting energy efficiency requirements.

Internal Soft-Start Function: Smooths the power-up sequence, reducing stress on the circuit.

FSL146MRBN Applications

The FSL146MRBN is ideal for use in:

Switch-Mode Power Supplies (SMPS): Used in TVs, monitors, and small appliances.

Power Adapters: Suitable for portable devices, such as laptops, smartphones, and tablets.

LED Drivers: Provides efficient power conversion for LED lighting systems.

Standby Power Supplies: Designed for efficient low-power operation in standby mode.

FSL146MRBN CAD Model

Footprint

3D Model

FSL146MRBN Benefits

Compact Design: The integration of the MOSFET and PWM controller reduces the footprint, enabling smaller and more compact designs.

High Efficiency: Burst-mode operation allows it to consume less power during low-load conditions, making it energy-efficient.

Robust and Reliable: Multiple protections help ensure safe operation, even in fault conditions, enhancing the reliability of the final product.

FSL146MRBN Alternatives

Potential alternatives to the FSL146MRBN include:

Fairchild FSL206MRBN: Similar integrated PWM controller with slight variations in voltage and power ratings.

ON Semiconductor NCP1207: An efficient PWM controller with integrated MOSFET designed for low-power applications.

Texas Instruments UCC28C43-Q1: A high-efficiency PWM controller with robust performance.

Power Integrations LNK304GN: A highly integrated power switch suited for low-power SMPS designs.

FSL146MRBN Manufacturer

onsemi (formerly known as ON Semiconductor) is a leading global provider of intelligent power and sensing technologies. With a strong focus on power management, automotive, industrial, and internet of things (IoT) markets, onsemi develops innovative semiconductor solutions that drive energy efficiency, electrification, and digital transformation across various sectors. The company’s product portfolio includes a wide range of solutions, such as power management ICs, sensors, intelligent power modules, and energy-efficient analog devices.

Headquartered in Phoenix, Arizona, onsemi has expanded its global presence through acquisitions and strategic partnerships, including the acquisition of Fairchild Semiconductor, which bolstered its portfolio in power and automotive applications. onsemi's solutions support critical advancements in electric vehicles (EVs), renewable energy, autonomous driving, 5G, and industrial automation, making it a key player in powering the future of sustainable technology. The company is listed on NASDAQ under the ticker symbol ON.

FSL146MRBN FAQs

What is the typical output power that the FSL146MRBN can handle?

The FSL146MRBN can handle up to around 18W of output power, making it suitable for small and medium power applications.

Does the FSL146MRBN support standby or low-power modes?

Yes, it supports burst-mode operation, which significantly reduces power consumption during standby or low-load conditions, ideal for meeting energy-saving regulations.

What protections are included in the FSL146MRBN?

It includes several protection features such as overvoltage protection, overcurrent protection, thermal shutdown, and overload protection, which enhance the reliability of the device.

Is the FSL146MRBN suitable for LED driver applications?

Yes, it can be used in LED driver applications, providing efficient power conversion and stable performance.

What is the primary advantage of using the FSL146MRBN in power adapter designs?

Its integrated MOSFET and PWM controller simplify the design, reduce component count, and improve overall efficiency in power adapter applications.